Medical instrument handle

Abstract

A medical instrument handle assembly, for holding a medical instrument configured for preparing a bone to receive an implant, includes: a housing including a housing pin; an elongate arm including a proximal end; a lever subassembly including a lever body and a lever latch, the lever body being pivotally connected to the proximal end of the elongate arm, the lever body and the lever latch being pivotally connected to one another and thereby being selectively positionable relative to one another between a first position and a second position, the first position being when the lever body and the lever latch are clamped about the housing pin, the second position being when the lever body and the lever latch are unclamped relative to the housing pin.

What is claimed is: 
     
       1. A medical instrument handle assembly for holding a medical instrument configured for preparing a bone to receive an implant, said medical instrument handle assembly comprising:
 a housing; 
 a rigid housing pin stationarily fixed within said housing, said housing pin defining a pin axis; 
 an elongate arm including a proximal end; 
 a lever subassembly including a lever body and a lever latch, said lever body being pivotally connected to said proximal end of said elongate arm, said lever body and said lever latch being pivotally connected to one another and thereby being selectively positionable relative to one another between a first position and a second position, said first position being when said lever body and said lever latch are clamped about and contacting said housing pin, at least one of said lever body and said lever latch rotating about the pin axis to clamp about said housing pin, said second position being when said lever body and said lever latch are unclamped relative to said housing pin. 
 
     
     
       2. The medical instrument handle assembly of  claim 1 , wherein said lever body includes a fork having a first projection and a second projection which together form a first slot therebetween which receives said housing pin, said second projection of said fork having a reduced thickness relative to said first projection and being connected with said proximal end of said elongate arm. 
     
     
       3. The medical instrument handle assembly of  claim 2 , wherein said lever latch includes a first hook and a second hook, said fork being positioned between said first hook and said second hook, said first hook and said second hook cooperating with said fork and said first hook, said second hook, and said lever body thereby clamping said housing pin when said lever body and said lever latch are in said first position. 
     
     
       4. The medical instrument handle assembly of  claim 3 , wherein said lever latch includes a platform and a boss on said platform, said first hook and said second hook extending from said platform. 
     
     
       5. The medical instrument handle assembly of  claim 4 , wherein said lever body includes a hole, said boss extending through said hole when said lever body and said lever latch are in said first position, said boss being at least partially retracted through said hole when said lever body and said lever latch are in said second position. 
     
     
       6. The medical instrument handle assembly of  claim 5 , wherein said lever subassembly includes a lever button which is slidably attached to said lever body, said lever button being selectively positionable between a first lever button position and a second lever button position, said first lever button position being when said lever button is attached to said boss, said second lever button position being when said lever button is detached from said boss. 
     
     
       7. The medical instrument handle assembly of  claim 6 , wherein said boss includes a head, said lever button including a raceway configured for slidably receiving said head, said lever button being in said first lever button position when said head is attached to said raceway. 
     
     
       8. The medical instrument handle assembly of  claim 7 , wherein said lever body includes a second slot, said lever button including a single downwardly depending projection extending through said second slot, said downwardly depending projection configured for being moved in said second slot when said lever button is moved between said first lever button position and said second lever button position, the handle assembly being double offset. 
     
     
       9. The medical instrument handle assembly of  claim 7 , wherein said lever button includes two downwardly depending projections. 
     
     
       10. The medical instrument handle assembly of  claim 1 , wherein said housing defines a longitudinal axis and said pin axis is transverse to said longitudinal axis. 
     
     
       11. The medical instrument handle assembly of  claim 1 , wherein at least one of said lever body and said lever latch rotates about said pin axis to both clamp about said housing pin and unclamp from said housing pin.